Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tampella Oy AbfiledCriticalTampella Oy Ab
Priority to FI760494ApriorityCriticalpatent/FI56417C/fi
Priority to SE7701617Aprioritypatent/SE415042B/xx
Publication of FI760494A7publicationCriticalpatent/FI760494A7/fi
Publication of FI56417BpublicationCriticalpatent/FI56417B/fi
Application grantedgrantedCritical
Publication of FI56417CpublicationCriticalpatent/FI56417C/fi